机器之心·2025-10-01 07:26Core Viewpoint - The article discusses the advancements of Sora 2, an AI video and audio generation model, highlighting its superior physical accuracy, realism, and controllability compared to its predecessor and competitors like Google's Veo3 [1][6][7]. Comparison with Veo3 - Sora 2 can generate up to 20 seconds of 1080p video, positioning it as a strong competitor to Veo3 [7]. - The audio generation capabilities of Sora 2 are noted to be superior to those of Veo3 [9]. - Sora 2's video generation avoids issues like object disappearance and distortion, which were present in the previous version [5][9]. - Users can access Sora 2 through a web platform or an iOS app, both requiring an invitation and a US IP address [11][12]. Performance Testing - In various tests, Sora 2 demonstrated impressive capabilities in generating realistic videos, including ASMR and singing performances, with accurate audio-visual synchronization [20][22]. - However, both Sora 2 and Veo3 struggled with generating gymnastics videos, resulting in unrealistic movements [28][33]. - Sora 2 outperformed Veo3 in generating fake news segments, providing a more dynamic presentation [24][25]. User Experience and Accessibility - The Sora iOS app mimics popular social media platforms like TikTok, featuring a recommendation algorithm and options for user interaction [44]. - OpenAI has implemented safety measures, including watermarks and restrictions on deepfakes of public figures, to prevent misuse of the technology [35]. Market Position and Competition - The article suggests that while OpenAI's Sora 2 has established a product barrier, competition remains fierce in the AI video generation space, with other companies like Meta and domestic platforms also advancing their offerings [46][47].